A laser welding process for automobile body

Abstract

The invention belongs to the technical field of laser welding, and specifically relates to a laser welding process for automobile bodies. The process includes the following steps: placing solder in the shell of a laser welding device, and the laser torch of the laser welding device melts the solder into a weld The welding liquid welds the body of the car; the conical suction pipe of the laser welding equipment moves in the welding liquid with the lower end of the shell, and the suction pump of the laser welding equipment works so that the conical suction pipe sucks the gas in the welding liquid and The gas is discharged through the air guide tube and the suction pump; the suction pump of the laser welding equipment drives the air motor to rotate, the air motor drives the gear to rotate, and the gear drives the soft rack to rotate so that the conical suction pipe rotates, and the conical suction pipe rotates in the welding liquid The gas is extracted; the heating wire in the gas tube of the laser welding equipment heats the gas tube, and the gas tube is heated so that the welding fluid in the gas tube will not solidify and block the gas tube, and the gas is smoothly transmitted through the gas tube to the suction pump.

Description

technical field [0001] The invention belongs to the technical field of laser welding, in particular to a laser welding process for automobile bodies. Background technique [0002] Laser welding is to use high-energy laser pulses to locally heat materials in a small area. The energy of laser radiation diffuses into the interior of materials through heat conduction, and melts the welding materials to form a specific molten pool. It is a new type of welding method, mainly aimed at the welding of thin-walled materials and precision parts, and can realize spot welding, butt welding, lap welding, sealing welding, etc. With the development of society, people have higher and higher requirements for product quality, which makes the application of laser welding more and more widely. Now laser welding technology has been applied to the welding of automobile body, and laser welding has improved the quality of automobile body welding. , but the existing laser welding process of the auto...

AI Technical Summary

Problems solved by technology

With the development of society, people have higher and higher requirements for product quality, which makes the application of laser welding more and more widely. Now laser welding technology has been applied to the welding of automobile body, and laser welding has improved the quality of automobile body welding. , but the existing laser welding process of the automobile body makes it impossible to effectively remove the gas in the welding liquid during the laser welding of the automobile body, thus easily causing welding pore defects, affecting the quality of welding, and affecting the welding of the automobile body weld strength

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